Regulation of downstream neuronal genes by proneural transcription factors during initial neurogenesis in the vertebrate brain.

Regulation of downstream neuronal genes by proneural transcription factors during initial neurogenesis in the vertebrate brain.
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DOI:
10.1186/s13064-016-0077-7
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发表时间:
2016-12-07
期刊:
影响因子:
3.6
通讯作者:
Dupé V
Dupé V
中科院分区:
生物学3区
文献类型:
--
作者:
Ware M;Hamdi-Rozé H;Le Friec J;David V;Dupé V

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神经元出现在神经管的非常特定的区域,由Notch信号通路的组分、原神经基因和其他bHLH转录因子控制。大脑中这些特定的神经元区域是如何在发育过程中产生的,这一点刚刚开始被阐明。值得注意的是,神经原基因在神经元群体分化过程中的关键作用尚不清楚,这些神经元群体在发育中的大脑中产生早期轴突支架。其下游效应物的调节仍然不清楚。这项研究提供了第一个概述的时空表达的前神经基因的神经元群体的早期轴突支架在鸡和小鼠。过表达研究和突变小鼠已经确定了一些特定的神经元基因,这些基因是这些神经元群体中前神经转录因子的靶点。总之,这些结果提高了我们对参与脑中第一个神经元群体分化的分子机制的理解。本文的在线版本(doi:10.1186/s13064-016-0077-7)包含补充材料,可供授权用户使用。
Neurons arise in very specific regions of the neural tube, controlled by components of the Notch signalling pathway, proneural genes, and other bHLH transcription factors. How these specific neuronal areas in the brain are generated during development is just beginning to be elucidated. Notably, the critical role of proneural genes during differentiation of the neuronal populations that give rise to the early axon scaffold in the developing brain is not understood. The regulation of their downstream effectors remains poorly defined. This study provides the first overview of the spatiotemporal expression of proneural genes in the neuronal populations of the early axon scaffold in both chick and mouse. Overexpression studies and mutant mice have identified a number of specific neuronal genes that are targets of proneural transcription factors in these neuronal populations. Together, these results improve our understanding of the molecular mechanisms involved in differentiation of the first neuronal populations in the brain. The online version of this article (doi:10.1186/s13064-016-0077-7) contains supplementary material, which is available to authorized users.
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